code: def _decay_weights_op(self, var):
      if self.decay_var_list is None or var in self.decay_var_list:
          return var.assign_sub(self.wd * var, self._use_locking)
      return tf.no_op()
  
file_path: finetune/finetune/optimizers/weight_decay.py
imports: import tensorflow
  from tensorflow.python.ops import resource_variable_ops
label_desc: Use image node_id 2 for calling the AdamW obj's underlying member method code with example usage: obj._decay_weights_op(var) and returns: tf, var